Malicious PDF — malware analysis report

Static analysis result for SHA-256 8c0e9419a1d1c41e…

MALICIOUS

PDF

70.1 KB Created: 2021-02-24 01:53:54 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 32825153e035e59c477b2e57498ebf00 SHA-1: 680b3eb1bbd38fa41ef5363ebc243d52ac059944 SHA-256: 8c0e9419a1d1c41e58540c4c058b008e2f715e51ecb0848d187106595d61b328
184 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL https://crophysi.ru/123?utm_term=how+to+turn+off+a+pocket+juice+charger In PDF document text
    • http://animoney.xyz/1264717895ku2sy.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4385010/normal_5fcc5e7e95544.pdfIn PDF document text
    • https://jupiretuvivu.weebly.com/uploads/1/3/5/3/135383394/tafumezonez-rotadevefimux-juwaxin-murovuwidazad.pdfIn PDF document text
    • https://womiridiwudawap.weebly.com/uploads/1/3/1/4/131408248/145539.pdfIn PDF document text
    • http://lnstagaram-verifiedbadges-from.com/psc_result_2018_sylhet_board_marksheet3hw2g.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4374021/normal_6035808a3c57b.pdfIn PDF document text
    • https://vumizopefi.weebly.com/uploads/1/3/5/3/135313358/8242972.pdfIn PDF document text
    • http://harkateine.fun/sig_sauer_x5_legion_holstertvvxa.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369927/normal_6025aac0bb019.pdfIn PDF document text
    • https://cdn.sqhk.co/musutalivun/eFbgfgh/final_heroes_best_team_2019.pdfIn PDF document text
    • https://wadazujirala.weebly.com/uploads/1/3/4/5/134596454/3957036.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4393637/normal_5ffd5a9ad9e9a.pdfIn PDF document text
    • http://idealicacolumbia.site/daily_language_review_grade_6_answer_key_week_10bb9gu.pdfIn PDF document text
    • https://cdn.sqhk.co/zoluxoni/Vibdt3Q/gymnastics_training_bar.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4459937/normal_5fe64c24474d7.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/fofeguj/sas_proc_import_excel_worksheet.pdfIn PDF document text
    • https://s3.amazonaws.com/sinamozagemoger/end_tenancy_agreement_letter_template.pdfIn PDF document text
    • https://s3.amazonaws.com/girilifawuxi/montblanc_little_prince_ink.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000d6df.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD6DF 5260 bytes
SHA-256: f28509014d964ac6026409b3de8de4390c872d41d661a662cb51c51aa9649397
font_01_sfnt_off0000e8db.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE8DB 10148 bytes
SHA-256: 16664f30ab8d8a66292254b4495726ec5efd60324f037a6e1c7498770f656603

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